Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 304 [Rate centres in NPA 304] [Dial plan for NPA 304]

NXX: 320

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
304-320 A Bluefield WV BLFDWVXAX9X  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 932      

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

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